In a letter to residents of the town, Matthew Mirrington, the show's assistant location manager, said: "As you may have heard, we are going to be filming at various locations in and around Launceston from August 30 to September 4, 2017.

"We have the blessing of Launceston Town Council and Cornwall Council to ensure filming can run efficiently with minimal disruption to yourselves."

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Mr Mirrington continues to reveal that on August 30 and 31, cast and crew will be based within a private property.

On the morning of September 1, filming will move to a property on Broad Street and later in the afternoon will be based in the town centre.

Mr Mirrington added: "On this day [September 1] we will have a stop/go traffic management system in place. To facilitate the filming there will be some equipment vehicles and vans parked in loading bays around the area.

"On September 4 we will be returning to the town for some filming on Castle Street near the Eagle House Hotel.

"Our larger film unit vehicles will be parked on the outskirts of Launceston and crew will be shuttled into the town for filming."